80184domain: NAppears in sequencesPoincaré series [or Poincare series] P(C_{3,2}(0); t).at n=39A124636a(n) = 5^n + 3^n - 2^n.at n=7A135160a(n) = 5^p + 3^p - 2^p, where p = prime(n).at n=3A135175